"Aegilops". County-level distribution maps from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
delta-intkey.com
Watson, L. and M. J. Dallwitz. 1992 onwards. Aegilops.Archived October 10, 2008, at the Wayback Machine The Grass Genera of the World. Version: 18 December 2012.
Aegilops.Archived October 22, 2013, at the Wayback Machine Triticeae Genus Fact Sheets. Intermountain Herbarium. Utah State University.
web.archive.org
Watson, L. and M. J. Dallwitz. 1992 onwards. Aegilops.Archived October 10, 2008, at the Wayback Machine The Grass Genera of the World. Version: 18 December 2012.